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2 Sheets- Sheet 1..

R E L L U P H W q d o M m ROLL HOLDER FOR PHOTOGRAPHIG CAMERAS.

No. 439,650. Patented Nov. 4, 1890.

L1 5 Y O M w c w F a e d m o ,r w m w (No Model.) 2 Sheets-Sheet 2.

W. H. FULLER. ROLL HOLDER FOR PHOTOGRAPHIG CAMERAS. No. 439,650. Patented Nov. 4, 1890.

UNITED STATES PATENT OFFICE.

W'ILLARD H. FULLER, OF PASSAIO, NEXV JERSEY, ASSIGNOR TO THE SCOVILL & ADAMS COMPANY, OF NEXV YORK, N. Y.

ROLL-HOLDER FOR PHOTOGRAPHIC CAMERAS.

SPECIFICATION forming part of Letters Patent No. 439,650, dated November 4, 1890.

Application filed February 13, 1890. Serial No. 340,299. (No model.)

T to whom it may concern;

Be it known that I, TILLARD H. FULLER, of Passaic, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Roll-Holders for Photographic Cameras, of which the following is a specification.

This improvement relates to roll-holders in which a strip of sensitized film or paper is transferred from one rotary part to another, and so arranged that a portion only of the strip will be exposed to the action of the light.

I will describe a roll-holder embodying my improvement, and then point out the novel features in the claims.

111 the drawings, Figure l is a plan view of a roll-holder embodying my improvement with the front removed. Fig. 2 is a side view thereof. Fig. 3 is a rear view of the roll-holder with the casing removed. Fig. 4 is a section through the line a' a: of Fig. Fig. 5 is a detail showing a friction device for one of the rotary parts, and Fig. 6 is a modified arrangement of the rotary parts.

Referring by letter to the drawings, A designates a box or casing consisting of four sides,

- a back, and a removable front A, in which a dark-slide is arranged. The front A is channeled around its edge to engage a rabbet on the case, in order to make a close joint and exclude the light, and a dark-slide a moves in grooves in the front. The front A is reinovably secured to the case A by means of clips at, which are secured at one end to the front, and engage with pins on the case. The front or case is provided with grooves to engage upon ribs 011 a camera-body to secure the device to a camera in the position of an ordinary plate-holder. It maybe stated here that the case itself is in effect a plate-holder.

B designates aframe having sides 1), placed within the casing A and constituting a support for the rotaryparts or rollers B B The roller 13 is a delivery-roller and the roller B is a take-uproller. The roller B has abearing at one end upon a lug Z), which in this instance I have shown as provided with a threaded shank to engage in a tapped opening through one side of the frame and with a finger-piece b at its outer end. This bearing, therefore, may be turned out or free from bearing in one side of the frame B. As a means for locking the roller B to the trunnion,I have shown a pin cas extended transversely through the trunnion to engage within a transverse groove 0 in the end of the roller. This insures the rotation of the trunnion with the roller and also renders the roller easily detachable from the trunnion. Vhen locked together, the roller and trunnion are in eifect one device.

A flange or disk a maybe mounted on the trunnions to guide the filmstrip. This guide consists of a metal plate having a central opening to pass over the trunnion and slots 0', radiating from the central opening through which the pins 0 may pass when the guide is placed upon the trunnion.

It is desirable that the roller 13' be provided with a tension device, and as a means therefor the trunnion c rotates within a fric tion-collar O. This friction-collar C consists of a resilient metal partial ring havingits inner surface bearing upon an enlarged cylindrical portion 0 of the trunnion. The ends of the partial ring do not meet, but have a space 0 between them, and the ring at the side opposite the space 0 is secured to the side of the frameB by means of apin c seated in a groove in a stud c projecting from the frame. The ring or collar 0 may have p rtions of its outer edge cut away, as at of, to decrease the thickness of the metal at these points, and it will be observed that the greatest spring-action of the collar will be at these points.

The take-u p roller 13 has trunnion-bearings in the frame B. One of the trunnions of the roller 13 has a worm-gear (Z affixed to it engaging with a worm-shaft D, which rotatesin bearings d, secured to the frame B. The outer end of the worm shaft D projects through its bearing, and is provided with a ratchet-wheel (F, with which a spring-dog 61 engages, and beyond the wheel d a pin (1 projects outwardly from the shaft to engage within a bayonet-slot in a key or crank employed to rotate the worm-shaft and transmit motion to the take-up roller.

The take-up roller B has a circumference approximating the length of a section of the film-strip to be exposed, and markers in the form of pins (1 project from the surface of the roller and punch holes through the strip at approximately equidistant points. These perforations indicate the cutting-line between adjacent exposed surfaces or negatives.

It will be seen that the film-strip passes from the delivery-roller over the front of the frame B to the take-up roller. The ends of strip may be secured to the rollers by means of a spline seated in a longitudinal channel in the rollers.

E designates a tally or indicator in the form of a ratchet-toothed disk rotating on a pivot on the outer side of the case A. This indicator is provided with a series of numerals, a numeral being placed opposite each tooth of the disk excepting one, which may be the starting-point. Upon each complete rotation of the take-up roller the disk E is moved one point and indicates that a new or clear section of the film-strip is in position for exposure.

As a means for rotating the talley-disk I provide an extension-piece e for the trunnion of the take-up roller on the side adjacent to I the disk. This extension-piece is here shown as having a threaded engagement with the trunnion, so as to be easily disengaged therefrom, and at the end projecting through an opening in the case A, it is provided with an outstanding tooth e, designed to engage with a tooth of the tall y-disk at each rotation of the take-up roller. It will be seen that the tooth e strikes against the radial or shoulder portions of the disk-teeth and thus rotates the disk one point at each revolution of the roller.

In Fig. 6 I have shown the tally-disk as operatcd from a guide-roller B over which the film-strip passes, and is perforated to indicate the dividing lines. In this example the extension-piece 6 has a key-engagement with a short shaft 6 which upon the opposite end is provided with an escapement-toothed wheel a against which pins 8 on the end of the roller B strike and rotate a the wheel and tooth e on the extension-piece.

In the example shown in Fig. 6, the rollers B B. may be of the same size and both removable, as first described, for the roller B.

Having described my invention, what I claim is-- 1. In a roll-holder, the combination, with a case and a frame, of a removable deliveryroller having a tension and operating a tally, a take-up roller having a worm-gear, awormshaft engaging therewith, and means for rotating the Worm-shaft, substantially as specified.

2. In a roll-holder, the combination, with a frame anda take-up roller, of a delivery-roller, a trunnion interlocking with one end of the delivery-roller, and a resilient metal collar engaging the trunnion and serving as a tension for the roller, the said collar being held rigidly from movement in either direction, substantially as specified.

3. In a roll-holder, the combination, with a frame, of rollers having bearings in the frame, one of said rollers having perforating-points, a friction device engaging with one end of the delivery-roller, a tally operated by one of the rollers, and a worm-shaft engaging with a worm-gear on one of the rollers, substantially as specified.

4. In a roll-holder, the combination, with a frame and a rotary part, of a tension therefor consisting of apartial ring embracing one end of the rotary part and attached at one side to the frame and having cut-away portions to reduce the thickness of the metal, substantially as specified.

5. In a roll-holder, the combination, with a frame, of a rotary part having a tension device thereon and another rotary part having a worm-gearing for transmitting motion thereto, substantially as specified.

6. In a roll-holder, the combination, with a frame, of a rotary part, a tension device therefor, a take-up roller, a worm-gear on a trunnion of said roller, and a worm-shaft engaging with the worm gear, substantially as specified.

WILLARD II. FULLER.

\Vitnesses:

EHUE DEMAREST, J os. BARTON. 

